The Lenic languages are a fourth member of the Altaic Sprachbund, and was believed to form a fourth branch of Altaic. They are spoken along the Lena River and its tributaries in East Siberia. They have a close connection to the Tungusic family, and many Altaists spoke of a Leno-Tungusic branch, and some linguists today believe in a Leno-Tungusic Family. The Proto-Language shows some cognates with Yeniseian languages, such as /køɬ̪e/ "winter", leading some, based on genetic studies, to believe that a relative of Proto-Tungusic was adopted by Yeniseian or Para-Yeniseian people.

The Family has developed two major branches, sometimes called North and South, however, as the "South" Branch has a language in the north (Tyung Lenic) and the Aldan area showing a split along a dialect continuum, with no regard to north or south, Lenicists have called them θ-Lenic and ɬ-Lenic, based on the outcome of *ɬ̪, being θ in θ-Lenic and ɬ in ɬ-Lenic. ɬ-Lenic shows a fusion of the aspirates to the unaspirated stops, and the unaspirated series being voiced intervocally. θ-Lenic has the Aspirates fricativize.

Many children make up, or begin to make up, imaginary languages. I have been at it since I could write.
-JRR Tolkien

It is of note that Eireŋ words ending in /ʔ h ŋ/ usually have a prevocalic stem, with each of these endings turning into a unique stop, fricative or nasal, respectivly, so Küh "werewolf" has a prevocalic stem Küz-. It is also worth noting that Eireŋ is split-S.

Pagalčæ verbs take the same personal markings as the possesives for the noun, and take a past suffix hÜ (there is a complex system of other TAs, using auxillary converbs).
Tööleserwö küüɫud übirhü
"They threw stones at the werewolf"

Many children make up, or begin to make up, imaginary languages. I have been at it since I could write.
-JRR Tolkien

Like Proto-Lenic, there are three converbs in Pagalčæ: The Simultaneous (while): (U)bIm, The Pretemporal (Before): (U)gUl, and the Posttemporal (after): (U)bIhI.
Tööleserwö küüɫud toolobem übirhü
"They died while throwing stones at the werewolf"

Tööleserwö küüɫud toolobehe übirhü
"They died after throwing stones at the werewolf"

The converbs can be used as auxilliries with the verb Pääɫ "To exist" to make other TAs:
Simultaneous means progressive:
Tööleserwö küüɫud übir
"They throw stones at the werewolf"
Tööleserwö küüɫud pääɫabæm übir
"They are throwing stones at the werewolf"

The pretemporal means the future:
Tööleserwö küüɫud pääɫagal übir
"They will throw stones at the werewolf"

Cultural note on "Werewolf":
What I translate as "Werewolf" is a mythic creature that is said to form either by a human eating raw meat, and if they are not treated by a shaman, they will turn into it or people who have died from eating rotten meat, if their funeral rights are not done with special enhancements, they will rise as a "werewolf". A "Werewolf", in this context, is a large wolf with retractable claws and multiple (3-7, depending on the culture) tails with clawed human hands on them. In most cultures they have the intelligence of a human child or late toddler, and they can breed among themselves. They do not "infect" others with their bite, but they mostly kill humans on sight- mostly for sport, some cultures say they will never eat human flesh, others only if hungry, others say they will eat every kill.

Many children make up, or begin to make up, imaginary languages. I have been at it since I could write.
-JRR Tolkien